منابع مشابه
Dairy Cattle by Exploiting Progeny Testing
We have exploited “progeny testing” to map quantitative trait loci (QTL) underlying the genetic variation of milk production in a selected dairy cattle population. A total of 1,518 sires, with progeny tests based on the milking performances of > 150,000 daughtersjointly, was genotyped for 159 autosomal microsatellites bracketing 1645 centimorgan or approximately two thirds of the bovine genome....
متن کاملoptimization of progeny testing programs for iranian holstein dairy cattle
a deterministic model was employed to simulate various progeny testing programs compatible with the conditions of holstein dairy cattle population in iran. in simulated programs, the selection intensity of bulls was increased by increasing the ratio of cow population in mate with young bulls. selection accuracy in the programs was fixed because of the fixed progeny group. economic efficiency (t...
متن کاملGenetic Evaluation of American Suffolks through Progeny Testing
A progeny test was conducted in Western Australia in conjunction with the national central progeny test (CPT) program to evaluate 14 American Suffolk and 2 Australian rams as prime lamb sires, 4 of these rams having been evaluated previously in the national CPT program. The American Suffolks produced lambs that were heavier and had leaner carcases than lambs from the Australian sires. However, ...
متن کاملParentage verification in field progeny testing program of Mehsana buffalo.
The present study was undertaken to construct a multiplex microsatellite panel for parentage testing in Mehsana buffalo (Bubalus bubalis). The study was based on a total of 212 Mehsana buffalos (100 dams, 100 daughters, and 12 sires). Genomic DNA was extracted from blood and semen samples. A panel of 10 microsatellite markers (CSSM61, ILSTS29, ILSTS17, ILSTS28, CSSM57, CSSM22, ILSTS61, CSSM8, E...
متن کاملTimeliness and effectiveness of progeny testing through artificial insemination.
Progeny-test (PT) programs of US artificial-insemination (AI) organizations were examined to determine timeliness of sampling, PT daughter distribution, rate of return of PT bulls to widespread service, and genetic merit of PT bulls compared with AI-proven and natural-service (NS) bulls. Bull age at semen release and at birth and calving of PT daughters was documented by breed (Ayrshire, Brown ...
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ژورنال
عنوان ژورنال: Poultry Science
سال: 1933
ISSN: 0032-5791
DOI: 10.3382/ps.0120349